Time domain reflectometers
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Time domain reflectometers are used to determine the characteristics of electrical or optical transmission lines by observing reflected pulses.
Links
- Time-domain reflectometer @ Wikipedia
- Tektronix 003-0700-00 Time Domain Reflectometry (TDR) slide rule
Documents Referencing Time domain reflectometers
| Document | Class | Title | Authors | Year | Links |
|---|---|---|---|---|---|
| Service Scope 38 Jun 1966.pdf | Article | Tektronix Type 1S2 Makes Reflectometry Easy | 1966 | 1S2 • Time domain reflectometers | |
| Service Scope 45 Aug 1967.pdf | Article | Time-Domain Reflectometry Theory and the Testing of Coaxial Transmission Lines | 1967 | 1S2 • 547 • Time domain reflectometers | |
| 062-1244-00.pdf | Book | Measurement Concepts: Time-Domain Reflectometry Measurements | James A. Strickland • Al Zimmerman • Gordon Long • George Frye | 1969 | Time domain reflectometers • 3S7 • 3T7 |
Patents that may apply to Time domain reflectometers
| Page | Title | Inventors | Filing date | Grant date | Links |
|---|---|---|---|---|---|
| Patent US 3434049A | Time domain reflectometry system having a current source for locating discontinuities in a transmission line | George Frye | 1965-12-06 | 1969-03-18 | Time domain reflectometers |
| Patent US 4755742A | Dual channel time domain reflectometer | Agoston Agoston • John Rettig • Stan Kaveckis • John E. Carlson • Andrew E. Finkbeiner | 1986-04-30 | 1988-07-05 | Time domain reflectometers • SD-24 |
| Patent US 4743753A | Method and apparatus for carrying out fiber optic time domain reflectomery wherein Golay complementary sequences are applied | John Cheng • Jeffrey H. Goll • J. Nelson Edwards | 1986-09-05 | 1988-05-10 | Time domain reflectometers |
| Patent US 4924110A | High speed step generator output circuit | John Rettig • Jonathan Lueker • John E. Carlson • Stan Kaveckis • Roy Lewallen | 1988-09-08 | 1990-05-08 | Time domain reflectometers • SD-24 |
| Patent US 4989971A | Automatic mask trigger for an optical time domain reflectometer | Kevin B. McDonald | 1989-07-14 | 1991-02-05 | Time domain reflectometers |
| Patent US 6437578B1 | Cable loss correction of distance to fault and time domain reflectometer measurements | Linley Gumm | 2000-11-14 | 2002-08-20 | Time domain reflectometers |
Reflectometer products
| Model | Description | Introduced | Discontinued |
|---|---|---|---|
| 1501 | Portable time-domain reflectometer | 1971 | 1975 |
| 1502 | Time-domain reflectometer | 1975 | (?) |
| 1502B | Time-domain reflectometer | 1988 | (?) |
| 1502C | Time-domain reflectometer | 1992 | (?) |
| 1503 | Time-domain reflectometer | 1976 | (?) |
| 1503B | Time-domain reflectometer | 1988 | (?) |
| 1503C | Time-domain reflectometer | 1992 | (?) |
| 281 | TDR Pulser | 1966 | 1972 |
| OF150 | Optical time-domain reflectometer | 1982 | (?) |
| OF151 | Optical time-domain reflectometer | 1986 | (?) |
| OF152 | Optical time-domain reflectometer | 1985 | (?) |
| OF235 | Optical time-domain reflectometer | 1986 | (?) |
| TFS2020 | Portable optical time domain reflectometer | 1990 | (?) |
| TFS3030 | portable optical time domain reflectometer | 1994 | (?) |
| TFS3031 | portable optical time domain reflectometer | (?) | (?) |
| TS200 | Telephone access network analyzer | (?) | (?) |